#!/bin/bash
isOk=true
for myargs in $@
do
	echo $myargs | grep -P "^[a-z[\d]+$" > "/dev/null"
	if [ $? -ne 0 ];then
		isOk=false
	fi
done
if [ $isOk = true ]; then
	echo "Hop doi' so'"
else
	echo "Khong hop doi so"
fi

